Prepare for war on the high seas: The Blu-ray edition of Battleship is out Aug. 28, and we're giving away 10 Blu-ray combo packs featuring the Blu-ray, DVD, and digital download of the film.

The classic board game comes to life, complete with aliens and Rihanna, in the 2012 action flick Battleship. In the film, decidedly unfriendly extraterrestrials answer a signal from NASA by invading Earth and wind up locked in an epic naval battle. In the clip below, the filmmakers describe the process of filming with the USS Missouri, the legendary WWII battleship that plays a key role in the movie.

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Battleship comes out on Blu-ray on August 28, and we're giving away 10 Blu-ray combo packs featuring the a Blu-ray, DVD, and digital download of the film. To enter, tweet "I want to win a Battleship Blu-ray/Combo Pack" on August 28 at 2 p.m E.T., and include the hashtag #popmechdvd.